BeaconMedaes Lifeline Medical Systems Setup guide

Part No. 6-847703-00 Rev. C00 Pg. 1
Lifeline Medical Systems
Fully-Automatic Manifold
For Use With Liquid Cylinders
Installation, Operation and Service Manual
LQ x HP
Liquid x High-Pressure Models

2Part No. 6-847703-00 Rev. C00
Table of Contents
INTRODUCTION
Audience................................................................2
Abbreviations .........................................................2
Definition of Statements.........................................3
Product Description ...............................................3
Environmental Considerations...............................3
INSTALLATION
Precautions............................................................4
Manifold System Components...............................4
Wall Mounting Manifold Control .............................5
Wall Mounting HP Reserve Header .......................9
Floor Mounting Manifold Control..........................12
Floor Mounting HP Reserve Header....................15
Main Outlet and Relief Valve Connection ............16
HP Reserve Header Connection .........................16
Power Supply Installation ....................................17
Reserve Low Switch Wiring .................................17
Remote Alarm Connection...................................17
Power Supply Wiring ...........................................18
Pigtail / Cylinder Connection...............................19
Initial Power-Up and Operational Testing ............21
Leak Testing.........................................................25
OPERATION
Precautions..........................................................26
Manifold Specifications ........................................26
Flow Characteristics ............................................28
Manifold System Components.............................30
Gas Flow Through Manifold.................................36
Manifold Switch-Over...........................................37
TESTING AND ADJUSTMENTS
Performance Verification......................................38
Bank Regulator Adjustment .................................41
Line Regulator Adjustment ..................................43
Secondary Supply Switch Adjustment .................43
Reserve In Use Switch Adjustment .....................44
Reserve Header Regulator Adjustment ...............45
Reserve Low Switch Adjustment .........................46
SERVICE PROCEDURES
Precautions..........................................................47
Routine Maintenance...........................................47
Techniques For Leak-Tight Connections .............48
Secondary Supply Switch Replacement..............49
Bank Regulator Replacement ..........................49
Line Regulator Replacement ...........................51
Abbreviations
AR Argon
CGA Compressed Gas Association
CO2 Carbon Dioxide
N2 Nitrogen
N2O Nitrous Oxide
NPTF National Pipe Thread Female
NPTM National Pipe Thread Male
O2 Oxygen
PSI Pounds Per Square Inch
scfm Standard Cubic Feet Per Minute
scfh Standard Cubic Feet Per Hour
VAC Voltage, Alternating Current
VDC Voltage, Direct Current
This manual provides information related to
installation and operation of liquid container
Lifeline manifold systems manufactured by
BeaconMedæs. Service information contained in
this manual is intended for use by technicians or
personnel qualified to repair and service medical
equipment.
Introduction
Audience
Reserve In Use Switch Replacement ..................51
Reserve Header Regulator Replacement............52
Reserve Low Switch Replacement ......................53
Control Board Replacement ................................53
Wiring Diagram ....................................................54
ILLUSTRATED PARTS LISTS
Control Panel Components..................................55
Bank Regulator Components...............................56
Line Regulator Components ................................57
Outlet / Dome Regulator Components.................58
Relief Vent Components ......................................59
Cabinet Cover Components ................................60
Cabinet Base Plate Components.........................61
Manifold LQ Inlet Components ............................62
Manifold HP Inlet Components ............................63
Pigtails .................................................................65
Replacement Pigtail O-Rings / Washers.............65
Manifold Stand Kits ..............................................65
Manifold Accessories...........................................65
HP Reserve Header Components .......................66
Power Supply Components .................................67
WARRANTY ........................................................68

3
Part No. 6-847703-00 Rev. C00
Product Description
Lifeline automatic changeover manifold system
is designed to provide a reliable, uninterrupted
supply of gas to a hospital or other medical facility.
A typical manifold system consists of a manifold
control panel with two banks. Liquid containers
are connected to left bank and high-pressure
cylinders are connected to right bank.
This type of manifold is often referred to as
“liquid x high-pressure” or “LQ x HP”. Left bank is
designated as "Primary" source of gas while right
bank stands in reserve as "Secondary" source.
Manifold control panel is connected to an
external high pressure reserve header assembly
consisting of multiple high-pressure cylinders.
Lights on front of manifold control panel and
power supply enclosure indicate status of gas
supply. Each manifold bank has a green (IN
USE), yellow (READY), and red (EMPTY) light.
The power supply enclosure has a red (RESERVE
IN USE) and red (RESERVE LOW) light.
When manifold’s primary bank of liquid
containers is depleted, system will automatically
switch to secondary bank of high-pressure
cylinders. When liquid containers are replenished,
manifold will automatically switch back to primary
(left) bank. If primary bank of liquid containers
and secondary bank of high-pressure cylinders
Statements in this manual preceded by
following words are of special significance.
WARNING: Means there is a possibility
of injury or death to yourself or others.
CAUTION: Means there is a possibility of
damage to unit or other property.
NOTE: Indicates points of particular interest
for more efficient and convenient operation.
Introduction
are depleted, manifold system will automatically
switch to external high-pressure reserve header
assembly.
Normally-closed dry switch contacts are
supplied for each alarm condition listed below.
Switch contacts are typically wired to external
master alarm panels and will open when alarm
condition occurs.
• Secondary Supply
• Reserve In Use
• Reserve Low
An external power supply converts 120 VAC to
24 VAC to power manifold. Power supply is
connected to bottom of manifold control via a 48"
cable.
Lifeline manifold system is designed in
accordance with National Fire Protection
Association (NFPA) 99.
Definition of Statements
Environmental Considerations
Manifolds are to be installed in accordance with
requirements stated by NFPA 99, CGA and all
applicable local codes.
Manifold components are designed to work
best over a temperature range of 32° F (0° C)
through 130° F (54° C). Wider temperature
variations may cause manifold malfunctions to
occur.
BeaconMedæs recommends manifold control
panel be located with its power supply at an
installation site protected from moisture,
continuous exposure to direct sun rays, ice and
snow.
Installing a nitrous oxide or carbon dioxide
manifold and high-pressure reserve header
assembly in a location that exposes it to ambient
temperatures below 32° F (0° C) is not
recommended.

4Part No. 6-847703-00 Rev. C00
Installation
Manifold system will be shipped in more than
one carton. Total number of cartons will depend
upon number of cylinder connections. Main carton
contains the following items:
• Manifold control panel
• Wall mounting bracket (attached to
manifold control panel)
• Power supply assembly
• 3/4" source shut-off valve
• High-pressure reserve header inlet fittings
• Installation, Operation, and Service
Manual
Additional cartons contain right bank header
extensions, high-pressure reserve header
assembly and appropriate number of liquid
container and high-pressure cylinder pigtail
assemblies. As a standard, manifold’s right side
and reserve header cylinder inlets are on 5-inch
centers. High-pressure cylinders must be placed
in a double row "staggered" configuration. High-
pressure pigtails for gases other than oxygen are
24” length stainless-steel flexible type. Oxygen
pigtails are rigid copper, preformed to approximate
shape for connection to cylinders. Pigtails for all
liquid containers are 72” length flexible type. The
manifold is designed to mount directly to a wall, or
be freestanding floor mounted with addition of a
manifold control panel floor stand kit and an
appropriate number of header floor stand kits for
manifold’s right bank header extensions and
reserve header assembly (sold separately).
Manifold System ComponentsPrecautions
WARNING:
• Tampering with gas specific connections shall
be prohibited. Do not alter, remove or modify
gas specific connections.
• Keep all manifold parts, tools and work
surfaces free of oil, grease and dirt. These
and other flammable materials may ignite
when exposed to high pressure oxygen or
nitrous oxide.
• Do not use chemicals, lubricants or sealants
unless specified in these instructions.
• Before connecting cylinder to manifold,
momentarily open and close cylinder valve to
blow out dirt and debris.
• After connecting cylinder to manifold, open
cylinder valve s-l-o-w-l-y to allow heat of
compression to dissipate.
• Do not use flame or “sniff” tests for leaks.
• Do not apply heat to any part of the manifold
system.
• Always secure high-pressure cylinders with
racks, straps, or chains. Unrestrained
cylinders may fall over and damage or break
off cylinder valve.
• Do not repeatedly bend, sharply bend, or
twist copper pigtails as damage to tubing
may occur.
• Do not bend flexible pigtails into a radius
smaller than 3”.
• After manifold wall bracket has been
mounted, one person alone should not
attempt to lift and hang the manifold cabinet.
• Do not put manifold into operation until
verified by a qualified person per NFPA 99 or
other local standard.

5
Part No. 6-847703-00 Rev. C00
Installation
Wall Mounting Manifold Control
Figure 1
1. Remove manifold control panel from shipping
carton and place face down on foam
packaging insert.
2. Mounting bracket is shipped attached to back
of manifold control panel. Remove lower 3/8"
mounting nut as shown in Figure 1. Pull
bottom of bracket away from manifold control
panel and slide bracket off two upper control
panel mounting bolts.
3. Mark wall 79-3/4" from finished floor in
location where manifold will be mounted.
Convert mark to level horizontal line
approximately 8" long.
3/8 Nut
Mounting
Bracket
Manifold
Control Panel
NOTE:
A bracket height of 79 3/4” allows for adequate
clearance beneath manifold when utilizing
standard “H” size cylinders (55” tall overall).
Bracket mounting height should be increased
proportionally if taller cylinders are to be used.

6Part No. 6-847703-00 Rev. C00
Installation
Figure 2
WARNING:
Do not attempt to lift manifold alone. Two people
are recommended in order to hang manifold onto
wall mounting bracket.
4. Place bracket flat against wall as shown in
Figure 2 and align top of bracket with level
horizontal line. Vertical center line of bracket
will be vertical center line of installed manifold.
Mounting top of bracket at 79-3/4" height will
net a 61" height from center of manifold
control inlets to finished floor.
5. Mark locations of mounting holes. Remove
bracket and drill mounting holes. Attach
bracket to wall with appropriate anchors (by
others). 3/8" diameter anchors are
recommended.
6. Hang manifold control panel on mounting
bracket. Top two control panel mounting bolts
will slide into slots of bracket. Bottom of
manifold control panel should be angled away
from bracket until top two bolts have been
inserted as shown in Figure 3. Bottom of
control panel can then be positioned toward
bracket so 3/8" mounting stud passes through
lower hole in mounting bracket. Install and
tighten 3/8" nut removed in step 2.

7
Part No. 6-847703-00 Rev. C00
Installation
Figure 3

8Part No. 6-847703-00 Rev. C00
Installation
7. Additional shipping cartons contain header
segments and header wall brackets.
Depending on number of cylinders, header
extensions are configured with two or three
cylinder inlets. Large manifold systems may
also include combinations and multiples of
each type of header extension. Remove large
nut and plug from right manifold inlet. Attach
appropriate header extension to right side of
manifold control panel. Position cylinder inlet
connections of each header extension so they
are pointing out (away from wall) and tighten
header extension (Figure 4).
CAUTION:
Do not use thread sealant on header or pigtail
connections.
CAUTION:
Each header segment must be supported by
a header bracket before additional header
segments are added.
Figure 4
8. Each header extension is shipped with a
header bracket. Position bracket against wall
and on bottom side of header as shown in
Figure 5. Attach bracket to wall using
appropriate anchors (by others). 3/8”
diameter anchors are recommended.
9. Assemble u-bolt and bracket hardware as
shown. Tighten u-bolt nuts.
10. Install large nut and plug removed in step 7 on
end of last header extension. Tighten large
nut.
Figure 5

9
Part No. 6-847703-00 Rev. C00
Installation
Wall Mounting HP Reserve Header
High pressure reserve header components
may be shipped in several cartons. One carton
will contain control section assembly consisting of
master valve, regulator assembly, and reserve
low pressure switch as shown in Figure 6.
Additional shipping cartons contain header
extensions, cylinder pigtails, and header wall
brackets. Depending on number of cylinders,
header extensions are configured with two or
three cylinder inlets. Large reserve headers may
also include combinations and multiples of each
type of header extension.
1. Remove large nut and plug from right side of
control section. Attach appropriate header
extension to control section. Position cylinder
inlet connections of each header extension so
they are pointing out . Additional header
extensions may be attached end to end if
required. Install large nut and plug previously
removed on end of last header extension
(Figure 7).
2. Mark wall 60-1/2" from finished floor in
location where high-pressure reserve header
will be mounted. Convert mark to level
horizontal line approximately as long as
assembled high-pressure reserve header.
3. Depending upon number of header
extensions, two or more header brackets will
be provided. Header brackets should be
positioned along length of high-pressure
reserve header assembly and should contact
header directly between cylinder connections.
A header bracket will typically be provided for
each header extension. Measure centerline
distance between header brackets and
transfer those measurements to horizontal line
described in step 2 as shown in Figure 8.
4. Position header bracket against wall and align
top of bracket with horizontal line. Center
brackets with centerline marks from step 3.
Attach brackets to wall using appropriate
anchors (by others). 3/8" diameter anchors
are recommended.
5. Set complete reserve header on top of wall
brackets and assemble u-bolt and bracket
hardware as shown. Tighten u-bolt nuts.
6. One more wall bracket should be installed to
support left side of reserve header assembly
as shown in Figure 9. Bracket will be slightly
lower than others and should be attached to
reserve header in order to mark mounting hole
location on wall.
7. Tighten all header extension unions and plugs.
Ensure all cylinder connections point away
from wall.
NOTE:
A mounting height of 60-1/2” allows for adequate
clearance beneath reserve header assembly
when utilizing standard “H” size cylinders (55” tall
overall). Bracket mounting height should be
increased proportionally if taller cylinders are to
be used.

10 Part No. 6-847703-00 Rev. C00
Figure 6
Installation
Master Valve
Nut & Plug
Reserve Low
Pressure Switch
Regulator
Assembly
Figure 7
Nut & Plug
Header Extensions *
* NOTE:
Configuration and number of header extensions
will vary depending upon size of high-pressure
reserve header assembly (5-cylinder model
shown).

11
Part No. 6-847703-00 Rev. C00
Installation
Figure 8
Figure 9
* NOTE:
Distance between wall brackets to be determined
by installer. Depending upon reserve header
configuration, multiple brackets may be required.
A bracket is provided for each header segment and
should contact header between cylinder
connections as shown in Figure 9.
Top of bracket aligned
with horizontal line on
wall.
Above finished floor
Attach wall bracket at this location in
order to support control section.
Bracket will mount slightly lower, bolt
bracket to reserve header first. Mark
mounting hole locations on wall.
60-1/2”

Figure 10
12 Part No. 6-847703-00 Rev. C00
Floor Mounting Manifold Control
Installation
For floor mounting manifold control
panel, a manifold control stand kit and an
appropriate number of manifold header
stand kits should be ordered separately.
One manifold control panel stand kit
contains all items needed to mount control
panel. Depending upon number of header
extensions on right side of manifold, one or
more header stand kits are required.
A vertical channel is required for each
right side header extension. Each header
stand kit contains two vertical channels and
all necessary items to support two header
extensions.
Verify contents of manifold control stand
and header stand kits (Figures 10 and 11):
1. Remove manifold control panel from
shipping carton and place face down on
foam packaging insert.
2. Mounting bracket is shipped attached to
back of manifold control panel. Remove
lower 3/8" mounting nut as shown in
Figure 1. Pull bottom of bracket away
from manifold control panel and slide
bracket off two upper control panel
mounting bolts.
3. Only bracket will be needed at this time.
Set manifold control panel aside for
installation later.
4. Attach post base to one end of each 80-
inch channel as shown in Figure 12,
Detail A. Use two each 3/8" bolts, flat
washers and channel nuts per base.
Tighten all four bolts.
Figure 11
NOTE:
Return manifold control panel to shipping
carton if necessary to protect and keep it
clean.
5. Stand each channel / base side by side.
Attach manifold mounting bracket to both
bases as shown in Figure 12, Detail B. Use
four each 3/8" bolts, flat washers and channel
nuts per base. Top of bracket should be level
and positioned 79 3/4" above floor. Tighten all
four bolts.
6. Position entire assembly in desired manifold
mounting location. Mark location of eight base
mounting holes. Move assembly aside and
drill holes. Minimum 3/8" diameter mounting
bolts are recommended (by others).
7. Reposition assembly over holes and install
mounting hardware (by others). Tighten all
mounting bolts.

13
Part No. 6-847703-00 Rev. C00
Installation
11. Each header segment is shipped with a
header bracket. Each header bracket should
be attached to a manifold stand by attaching a
post base to one end of 66-inch channel as
shown in Figure 12, Detail A. Use two each
3/8” bolts, flat washers, and channel nuts.
Tighten all bolts.
12. Set header stand in a vertical position roughly
in alignment with two vertical control panel
stands. Position header bracket against
channel and on bottom side of header as
shown in Figure 5. Attach bracket to channel
as shown in Figure 12, Detail E. Use two
each 3/8” bolts, flat washers, and channel
nuts. Tighten all bolts.
13. Align header stand with two control panel
vertical stands, centering header bracket
between two pigtail connections. Mark
location of all four base mounting holes. Move
header stand aside and drill holes. Minimum
3/8” diameter mounting bolts are
recommended (by others).
14. Reposition header stand over holes and install
mounting hardware (by others). Tighten all
mounting bolts.
15. Assemble u-bolt and bracket hardware as
shown in Figure 5. Tighten u-bolt nuts.
16. Additional header extensions may be
assembled end to end if required.
17. Install large nut and plug removed in step 10
on end of last header extension.
8. Attach 12-inch channel to top of one vertical
channel as shown in Figure 12, Detail D. 12-
inch channel is used to mount power supply
and may be located on either side of manifold
control panel. Use flat plate, four each 3/8"
bolts, flat washers and channel nuts. Unlike
other hardware shown in Figure 12, 3/8 bolts
will pass through elongated holes in back of
channel and will be secured with channel nuts
inside. Tighten all four bolts.
9. Hang manifold control panel on mounting
bracket. Top two control panel mounting bolts
will slide into the slots of bracket. Bottom of
control panel should be angled away from
bracket until top two bolts have been inserted
as shown in Figure 3. Bottom of manifold
control panel can then be positioned toward
bracket so 3/8" mounting stud passes through
lower hole in mounting bracket. Install and
tighten 3/8" nut removed in step 2.
10. Additional shipping cartons contain header
extensions and wall brackets. Depending on
number of cylinders, header extensions are
configured with two or three cylinder inlets.
Large manifold systems may also include
combinations and multiples of each type of
header extension. Remove large nut and plug
from right manifold inlet. Attach appropriate
header extension to right side of manifold
control panel. Position cylinder inlet
connections of each header extension so they
are pointing out (away from wall) and tighten
header extension (Figure 4).
CAUTION:
Do not use thread sealant on header or pigtail
connections.
WARNING:
Do not attempt to lift manifold alone. Two people
are recommended in order to hang manifold onto
wall mounting bracket.
Floor Mounting Manifold Control

14 Part No. 6-847703-00 Rev. C00
Figure 12
DETAIL A
DETAIL B
DETAIL C
DETAIL D
CAUTION:
In order to prevent damage to manifold piping
connections, vertical stands must be securely
braced to permanent structure to prevent
movement.
DETAIL E
Installation
Floor Mounting Manifold Control

15
Part No. 6-847703-00 Rev. C00
Installation
High pressure reserve header components will
be shipped in one or more cartons. One carton
will contain control section assembly consisting of
master valve, regulator assembly, and reserve
low pressure switch as shown in Figure 6.
Additional cartons contain header extensions,
cylinder pigtails, and header wall brackets.
Header extensions are configured with two or
three cylinder inlets. Large reserve headers may
include combinations and multiples of each type of
header extension.
For floor mounting reserve header assembly,
an appropriate number of manifold header stand
kits should be ordered separately. Depending on
size of high-pressure reserve header assembly,
one or more manifold header stand kits are
required. A vertical stand is required for each
header extension. One vertical stand is required
to support control section of reserve header
assembly. Each header stand kit contains two
vertical stands.
Verify contents of header stand kit (Figure 11).
1. Remove large nut and plug from right side of
control section. Attach header extension to
control section. Position cylinder inlet
connections of each header extension so they
are pointing out . Additional header
extensions may be attached end to end if
required. Install large nut and plug previously
removed on end of last header extension
(Figure 7).
2. A header bracket is provided for each header
extension. Another header bracket is
provided to support control section of reserve
header. Actual position of header brackets on
reserve header to be determined by installer.
Header brackets should be positioned along
length of high-pressure reserve header
assembly and should contact header directly
between cylinder connections. Bracket to
support control section must be located as
shown in Figure 13, Detail C. After each
bracket position has been determined,
measure centerline distance between the
header brackets and record measurements for
later use. Set assembled reserve header
aside for later use.
3. Each header bracket should be attached to a
header stand. Assemble each header stand
by attaching a post base to one end of 66-inch
channel as shown in Figure 13, Detail A. Use
two each 3/8" bolts, flat washers and channel
nuts. Tighten all bolts.
4. Set header stands in a vertical position. Align
all stands and set center to center spacing to
match header bracket spacing recorded in
step 2 . Mark locations of all four base
mounting holes on each header stand. Move
header stands aside and drill holes. Minimum
3/8" diameter mounting bolts are
recommended (by others).
5. Reposition header stands over holes and
install mounting hardware (by others). Tighten
all mounting bolts.
6. Mark all header stands, (except control section
stand), 60-1/2" from finished floor. Align top
of header bracket with mark and attach header
brackets to channels as shown in Figure 13,
Detail B. Use two each 3/8" bolts, flat washers
and channel nuts. Tighten all bolts. Control
section bracket will be attached later.
7. Set assembled reserve header on header
brackets and assemble u-bolt hardware as
shown in Figure 9. Tighten u-bolt nuts.
8. Verify reserve header assembly is level.
Adjust height of brackets as necessary.
9. Attach control section bracket to header stand
as shown in Figure 13, Detail C. assemble
u-bolt hardware. Tighten u-bolt nuts.
Floor Mounting HP Reserve Header
CAUTION:
Do not use thread sealant on header
connections.

16 Part No. 6-847703-00 Rev. C00
Installation
CAUTION:
• Each header segment and control section
must be supported by a header bracket.
• In order to prevent damage to manifold piping
connections, vertical stands must be securely
braced to permanent structure to prevent
movement.
DETAIL A
DETAIL B
Figure 13
DETAIL C
Manifold's main outlet and relief valve outlet
are supplied with zero clearance, o-ring sealed
unions. Main outlet connection is 3/4 NPTF and
relief valve is 1/2 NPTF. A 3/4" source shut-off
valve is also supplied with manifold control panel.
Inlet side of source shut-off valve is 3/4 NPTM for
connection directly to main outlet union. Outlet
side is a 3/4" nominal copper. A plugged, 1/8
NPTF port is provided on outlet side of valve to aid
in purging.
Main Outlet and Relief Valve Connection
CAUTION:
• Close 3/4" source shut-off valve to prevent
debris from falling into manifold during
brazing procedure.
• To prevent damage to internal o-ring, do not
apply heat to relief valve union. Braze male
sweat adapter to relief piping prior to
attaching to union.
High-pressure reserve header must be piped to
inlet on bottom of manifold control panel. Both
outlet of reserve header and manifold inlet are
supplied with zero clearance, o-ring sealed
unions. Both unions have 1/2 NPTF threads.
Piping type and installation must be in accordance
with current NFPA requirements.
HP Reserve Header Connection
CAUTION:
To prevent damage to internal o-ring, do not
apply heat to reserve header or manifold inlet
zero clearance unions. Braze male sweat
adapters to interconnecting piping prior to
attaching to unions.
Floor Mounting HP Reserve Header

17
Part No. 6-847703-00 Rev. C00
A separate power supply assembly is provided
with manifold control panel. Power supply
assembly should be mounted to wall on either
right or left side of manifold with top of power
supply roughly in alignment with top of manifold
control panel. 1/4" diameter mounting holes are
provided in back of power supply box (wall
mounting hardware by others).
If floor mounting manifold control panel, mount
power supply assembly to 12-inch channel as
shown in Figure 12, Detail C. Use two each 1/4"
bolts and channel nuts. Tighten all bolts.
Power supply shall be connected to a building
installed circuit breaker. Circuit breaker shall be
marked as disconnecting means for manifold. It is
recommended that circuit breaker be in close
proximity to manifold power supply.
Power supply assembly houses a 24 VAC
transformer and terminal blocks for AC input
power, reserve low pressure switch and remote
alarm connection (Figure 14). A 48” long cable
connects power supply to a six-pin connector on
bottom of manifold control panel.
Holes for 1/2” conduit are located on bottom of
power supply box for 120 VAC power, reserve low
pressure switch and remote alarm wiring.
120 VAC current draw will be less than 100
milliamperes. Primary of 24 VAC transformer
contains a 0.25 Amp time-delay fuse. The fuse
type is 5 x 20 mm, GMD-250mA (240 VAC models
use 0.125 Amp time-delay, type 5 x 20 mm, GMD-
125mA).
Installation
Power Supply Installation
For connection to a remote alarm or building
automation system, three sets of dry, normally
closed alarm contacts are available inside power
supply assembly. One of three sets is designated
for each alarm condition listed below.
• Secondary Supply
• Reserve In Use
• Reserve Low
All three sets of contacts are independent of
each other and will be closed whenever manifold
is powered and operating normally (no alarm
condition). If any alarm condition above occurs,
the appropriate set of contacts will open. If AC
power to manifold is removed, all three sets of
contacts will open. Contacts are rated for 2 A @
30 VDC / 0.6 A @ 110 VDC / 0.6 A @ 125 VAC.
Power supply also includes a red RESERVE IN
USE and red RESERVE LOW light that will
illuminate upon activation of corresponding alarm
condition.
Refer to Figure 14 for power supply
connections.
Remote Alarm Connection
NOTE:
All wiring shall be protected from physical
damage by raceways or conduit in accordance
with NFPA 70, National Electric Code.
Reserve Low Switch Wiring
The reserve low pressure switch is located on
high pressure reserve header assembly (Figure 6)
and must be wired to appropriate terminals inside
power supply (Figure 14). The pressure switch is
equipped with 20” wire leads and a 1/2 NPTM
conduit connection. Stranded wire of at least 22
gauge is recommended. Maximum recommended
wire size is 14 gauge.

18 Part No. 6-847703-00 Rev. C00
Installation
Power Supply Wiring
Connects to bottom
of manifold control
panel
Line
Neutral
Ground
120 VAC
Input
Power
Secondary Supply
Reserve In Use
Reserve Low
From reserve low switch
located on high-pressure
reserve header (Figure 6).
78
Dry Normally-Closed
Remote Alarm Contacts
1 2 3 4 5 6
Bottom View
Three 1/2” conduit knockouts for AC power
input, reserve low switch input and alarm
output field wiring.
Figure 14

19
Part No. 6-847703-00 Rev. C00
72” black flex pigtails are connected between
manifold control panel left bank and liquid
containers (Figure 15 and 16). Remove plastic
shipping caps from manifold control panel inlets.
Connect either end of 72” black flex pigtail to
manifold left side inlet. Connect other end of
pigtail to gas outlet of liquid container.
Manifold’s right bank and all high-pressure
reserve header assemblies other than oxygen
utilize 24” length flexible stainless-steel braided
pigtails.
Figure 15 illustrates a typical LQ x HP manifold
and 5 cylinder high-pressure reserve header
assembly utilizing flexible pigtails.
Manifold’s right bank and high-pressure
reserve header assemblies for oxygen service are
supplied with pre-formed rigid copper pigtails.
Figure 16 illustrates a typical LQ x HP manifold
and 5 cylinder high-pressure reserve header
assembly utilizing pre-formed rigid copper pigtails.
To install manifold right bank and high-pressure
reserve header pigtails:
1. Remove plastic shipping caps from manifold’s
right bank and reserve header pigtail
connections.
2. Connect one end of pigtail assembly to
manifold right bank or reserve header
connection. Coiled end of rigid copper pigtails
attaches to manifold right bank or reserve
header connection.
3. Position gas cylinders as shown in Figures 15
and 16. Secure each cylinder to wall or floor
stand with chains or straps.
4. Connect pigtails to each cylinder. Rigid
copper pigtails used on oxygen systems are
pre-formed to approximate required shape.
Lower end of rigid copper pigtails must be
bent 90° toward cylinder outlets.
WARNING:
• All pigtail assemblies are shipped in sealed
bags and are cleaned as if for oxygen use.
Manifold control panel and reserve header
connections are clean and capped. Do not
unpackage or remove any cap until ready to
install. During installation use care to
maintain cleanliness.
• Do not connect 72” black flex pigtail to high
pressure reserve header assembly. This type
of pigtail must only be connected between
manifold control panel and liquid containers.
• Do not repeatedly bend, sharply bend, or
twist copper pigtails as damage to tubing may
occur.
• Do not bend high-pressure flexible pigtails
into a radius smaller than 3".
• Always secure high-pressure cylinders with
racks, straps, or chains. Unrestrained
cylinders may fall over and damage or break
off cylinder valve.
CAUTION:
• Do not use thread sealant on header or pigtail
connections.
• Prior to connecting pigtail to cylinder, slightly
open and close each cylinder valve to blow
out dirt and debris.
Installation
Pigtail / Cylinder Connection
NOTE:
Both ends of flexible pigtails are the same. Either
end may be connected to manifold header. Rigid
copper pigtails on oxygen manifolds are
pre-formed and must be connected as shown in
Figure 16.
5. Tighten all pigtail connections firmly. Do not
over-tighten.

20 Part No. 6-847703-00 Rev. C00
Figure 15
Figure 16
Installation
72” Flex Pigtail 24” Stainless-Steel
Flex Pigtail
72” Flex Pigtail Rigid Copper
Pigtail